Accession Number:

AD0869813

Title:

Preparation and Testing of Short Fiber Molding Compounds

Descriptive Note:

Corporate Author:

MONSANTO RESEARCH CORP ST LOUIS MO

Personal Author(s):

Report Date:

1970-05-01

Pagination or Media Count:

103.0

Abstract:

A novel method has been developed for preparing epoxy molding compounds of short,high modulus fibers. It involves encapsulation of fiber with precatalyzed resinin an aqueous slurry of the components and yields the compound in the form ofdiscrete grains. The fibers in each grain are collimated and individuallyimbedded in the resin matrix. The process has been applied to short glass andboron fiber and to crocidolite asbestos. The resulting molding compounds havehigh bulk density, are free- lowing in the dry state, and exhibit adequate meltflow. Compositions containing very high fiber loadings can be prepared.Particulate additives fillers may be included in the formulation. Compositescan be prepared both by direct molding and extrusion of the compounds.

Subject Categories:

  • Refractory Fibers
  • Laminates and Composite Materials
  • Plastics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE